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Beyond cusp anomalous dimension from integrability in SYM$_4$
Beyond cusp anomalous dimension integrability
2010/12/23
We study the first sub-leading correction $O((\ln s)^0)$ to the cusp anomalous dimension in the high spin expansion of finite twist operators in ${\cal N}=4$ SYM theory. This term is still governed b...
Gauge invariant reduction and integrability of SL(2 ,R)/ U(1) WZNW theory
Gauge invariant SL(2 ,R)/ U(1) WZNW theory
2010/4/15
The general solution of SL(2,{\bf R})/U(1) WZNW theory is constructed by a gauge invariant reduction. This is done within both Lagrangian and Hamiltonian frameworks.